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Graphing-Vocabulary Flashcards

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Terms and definitions for graphing

Terms : Hide Images
286485047Positive SlopeA line that goes up from left to right.
286485048Negative SlopeA line that goes down from left to right.
286485049Undefined SlopeA vertical line, or two points where the difference of the x values is zero.
286485050Zero SlopeA horizontal line, or two points where the difference of the y values is zero.
286485051Point Slope FormulaA formula which gives us the slope for two points. Ex. (y2-y1)/(x2-X1)
286485052Parallel LinesLines that have the same slope.
286485053Perpendicular LinesLines whose slopes are negative reciprocals (Ex: m= 3, m= (-1/3) Lines which form a 90 degree angle.
286485054Y-InterceptWhere the line crosses the y-axis.
286485055X-InterceptWhere the line crosses the x-axis.
286485056Finding X-InterceptTo find the x-intercept we substitute zero for y.
286485057Standard FormAx + By = C
286485058Slope-Intercept FormY = mX + B
286485059Slope and a Point MethodGiven: Slope: (m= 1/2) Point: (1,2) First: Plot the point! Second: Use the top number of slope to move up (rise), and the bottom number of slope (run) to move left or right
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